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Finding the Fourth Proportional to 7,299, 10,072.63 and 4,155.19

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Solution

The fourth proportional to 7,299, 10,072.63 and 4,155.19 is: 5,734.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,299 : 10,072.63 = 4,155.19 : x
  2. Step 2: Convert to fraction form
    7,299/10,072.63 = 4,155.19/x
  3. Step 3: Cross multiply
    7,299x = 10,072.63 × 4,155.19
  4. Step 4: Simplify right side
    7,299x = 41,853,691.45
  5. Step 5: Solve for x
    x = 41,853,691.45/7,299
  6. Step 6: Final answer
    x = 5,734.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.